IEC TS 60079-42 - Basic Requirements

Last edit: 07/08/2025

Basic requirements

Safety functions shall respond to a potential ignition source of the EEUC before it becomes effective. Like we said in the previous page, safety functions shall therefore be considered as operating in low demand mode.

If a dangerous failure is detected in a safety device, it’s required to appen a specified action to achieve or maintain a safe state of the EEUC.

The safety device and the Ex Equipment shall be assessed for use as a combinatìon according to the relevant standards of the IEC 60079 series and the ISO 80079 series and shall be marked accordingly.

IEC TS 60079-42 – Ignition prevention by safety devices

Index

IEC TS 60079-42 IEC TS 60079-42 – Basic Requirements IEC TS 60079-42 – Ignition prevention by safety devices IEC TS 60079-42 – Ignition prevention by safety device – 2 IEC TS 60079-42 – lgnition prevention by safety devices – 3 IEC TS 60079-42 – Functional requirements for a safety device IEC TS 60079-42 – Testing and verification

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